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Home >> BMW >> 2013 >> Z4 28i, Automatic Trans >> Repair and Diagnosis >> Body & Frame >> Sun Roof/T-Top/Convertible Top >> Slide/Tilt Roof - Repair >> 5437 Folding Roof >> 54 37 225 Removing and installing/replacing right Convertible top compartment lid hydraulic cylinder

54 37 225 Removing and installing/replacing right Convertible top compartment lid hydraulic cylinder

Necessary preliminary tasks 

CAUTION: Hydraulic fluid may emerge from the disconnected lines and the open connections on the hydraulic cylinder.
Protect components and work area with suitable materials (e.g. cloths).
IMPORTANT: Convertible top compartment lid tilts closed when system is depressurized and must be supported with suitable apparatus.
Fig 1: Identifying Convertible Top Compartment Lid
G06912219Courtesy of BMW OF NORTH AMERICA, INC.
NOTE: Hydraulic system must be at zero pressure.
Open screw on hydraulic unit 1.5 turns.
Fig 2: Opening Screw On Hydraulic Unit
G06912233Courtesy of BMW OF NORTH AMERICA, INC.
  1. Unlock retaining lug
  2. Twist bearing pin downwards
Fig 3: Twisting Bearing Pin
G06912325Courtesy of BMW OF NORTH AMERICA, INC.

Remove bearing pin (1).

Fig 4: Removing Bearing Pin
G06912326Courtesy of BMW OF NORTH AMERICA, INC.

Remove retaining clip (1) with a screwdriver.

Drive out pin (2) at side.

Fig 5: Removing Pin
G06912327Courtesy of BMW OF NORTH AMERICA, INC.

Feed out hydraulic cylinder (1).

Unfasten plug connection (2) and disconnect.

Right side only: 

Unlock plug connection (3) for Hall sensor and disconnect.

Fig 6: Removing Hydraulic Cylinder
G06912328Courtesy of BMW OF NORTH AMERICA, INC.

Replacement only: 

IMPORTANT: Protect joints (lines and cylinder) against dripping fluid, e.g. with a cleaning cloth.

Detach cable tie.

Installation: 

Replace faulty cable ties.

Slide open retaining rings (1) with screwdriver.

Detach hydraulic lines (2).

Fig 7: Identifying Retaining Rings And Hydraulic Lines
G06181325Courtesy of BMW OF NORTH AMERICA, INC.

Installation: